IEDA / DECADE Detail

Data from the Global Volcanism Program of the Smithsonian Institution

Details for: Kujusan

The Kuju volcano group in northern Kyushu consists of more than ten andesitic stratovolcanoes and lava domes NE of Aso caldera. This view from the east shows Mimata-yama (right) and Naka-dake (left) lava domes, which formed about 10,000-12,000 years ago. Fumarolic activity is seen here in 1994 on the flank of Hossho-zan (center), the site of small phreatic explosions in November 1995. Many hot springs and hydrothermal fields are located at the Kuju complex. Photo by Yasuo Miyabuchi, 1994 (Forestry and Forest Products Research Institute, Kyushu).

Volcano Number:	282120
Volcano Name:	Kujusan
Country:	Japan
Volcano Type:	Stratovolcano(es)
Last Eruption:	1996 CE
Elevation:	1791m
Tectonic Setting:	Subduction zone / Continental crust (> 25 km)
Pop. within 5km:	1667
Pop. within 10km:	11771
Pop. within 30km:	181541
Pop. within 100km:	7815706
Latitude:	33.086
Longitude:	131.249

Eruption Data from the Global Volcanism Program of the Smithsonian Institution

Volcano Number	Volcano Name	Eruption Number	Activity Type	Explosivity Index Max	Explosivity Index Modifier	Activity Area	Activity Unit	Start Evidence Method	Start Date	End Date
282120	Kujusan	17352	Confirmed Eruption	4			A2 tephra	Radiocarbon (corrected)	-9160
282120	Kujusan	17353	Confirmed Eruption			Sensui-zan		Tephrochronology	-7180
282120	Kujusan	17354	Confirmed Eruption			Tachi-san, Gakurokuji		Tephrochronology	-4490
282120	Kujusan	17355	Confirmed Eruption	4		Taisen-Hokubu lava dome	Tephra layer A1	Radiocarbon (corrected)	-3780
282120	Kujusan	17356	Confirmed Eruption			Iwaigo-dake, Ogigahana, Hizengajo		Tephrochronology	-3110
282120	Kujusan	17357	Confirmed Eruption	4		Danbaru	DS tephra	Radiocarbon (corrected)	-2440
282120	Kujusan	17358	Confirmed Eruption			Taisen-Minami		Tephrochronology	-1720
282120	Kujusan	17359	Confirmed Eruption	4		Komekubo crater	Tephra layer KA	Radiocarbon (corrected)	-990
282120	Kujusan	17360	Confirmed Eruption	4		Komekubo crater	Tephra layer KB	Radiocarbon (corrected)	-100
282120	Kujusan	17361	Confirmed Eruption	3		Kuro-dake		Radiocarbon (corrected)	370
282120	Kujusan	17362	Confirmed Eruption	2	?			Historical Observations	1662/1/26
282120	Kujusan	17363	Confirmed Eruption	2	?			Historical Observations	1675
282120	Kujusan	17364	Uncertain Eruption	2	?				1738/8/13
282120	Kujusan	17365	Confirmed Eruption	1		Hosho lava dome (east flank)		Historical Observations	1995/10/11	1996/3/24

Emissions Data from the Global Volcanism Program of the Smithsonian Institution

Sorry. No emissions data found for this volcano.

Data from the Earthchem Library

Sorry. No data exist for this volcano in the EarthChem Library.

Data from the Earthchem Portal

Sample ID	LINK	Method	Material	Rock Class	Rock Name	SiO₂ WT%	TiO₂ WT%	Al₂O₃ WT%	Fe₂O₃ WT%	Fe₂O₃ Total WT%	FeO WT%	FeO Total WT%	MnO WT%	MgO WT%	CaO WT%	Na₂O WT%	K₂O WT%	P₂O₅ WT%	Total WT%	Ba PPM	Co PPM	Cr PPM	Cu PPM	Dy PPM	Nb PPM	Ni PPM	Pb PPM	Rb PPM	Sr PPM	V PPM	Y PPM	Zn PPM	Zr PPM	⁸⁷Sr / ⁸⁶Sr RATIO	²⁰⁶Pb / ²⁰⁴Pb RATIO	²⁰⁷Pb / ²⁰⁴Pb RATIO	²⁰⁸Pb / ²⁰⁴Pb RATIO
KDI-01	DETAILS	PGNAA	Rock	Igneous Intermediate Volcanic	Andesite
KDI-01	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	56.86	0.88	17.58	8.4				0.16	3.84	7.22	3.08	1.33	0.16	99.51	410		8			9	2		37	533	251	22		122
1	DETAILS	NOT GIVEN	Rock	Igneous Intermediate Volcanic	Andesite	59.94	0.76	16.55	2.92		3.22		0.14	2.73	6.05	3.46	1.83	0.18	97.78
101804	DETAILS	NOT GIVEN	Rock	Igneous Felsic Volcanic	Dacite	74.14													74.14	837		2	6		15	4		114	251	22	35	38	156	0.70425
60718B	DETAILS	NOT GIVEN	Rock	Igneous Intermediate Plutonic	Granodiorite																							152.5	229.6					0.70902
2064-3CSC3	DETAILS	TIMS	Rock	Igneous Unknown Volcanic	Not-given																													0.704072	18.331	15.553	38.385
2064-3CSC3	DETAILS	XRF	Rock	Igneous Unknown Volcanic	Not-given	55.04	0.91	17.89				8.23	0.15	3.58	7.68	3.21	2.01	0.26	98.96	412.3	26.4	32.2	61		7.4	6.6	5.9	57.4	576.1	250.9	22.1	70.7	157.6
3	DETAILS	NOT GIVEN	Rock	Igneous Intermediate Volcanic	Andesite	59.81	0.92	15.54	4.55		3.73		0.13	2.9	6.71	3.38	1.55	0.07	99.29
5	DETAILS	NOT GIVEN	Rock	Igneous Intermediate Volcanic	Andesite	57.96	1.04	16.94	3.69		5.42		0.14	3.07	7.05	3.29	1.47	0.08	100
KH-2	DETAILS	ICPMS	Rock	Igneous Mafic Volcanic	Basalt															383				3.51	4.79			29.9	784		21		74.8
KH-2	DETAILS	TIMS	Rock	Igneous Mafic Volcanic	Basalt																													0.704024
KH-2	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	52.65	1.06	18.25		9.98			0.18	4.38	8.57	3.13	1.26	0.24	99.7
3	DETAILS	NOT GIVEN	Rock	Igneous Intermediate Volcanic	Andesite	58.75	0.82	18.16	3.05		3.22		0.12	2.71	5.58	3.38	1.65	0.17	97.61
7	DETAILS	NOT GIVEN	Rock	Igneous Intermediate Volcanic	Andesite	57.78	0.82	17.86	2.21		4.81		0.08	3.13	8.01	3.21	1.7	0.11	99.72
060405	DETAILS	NOT GIVEN	Rock	Igneous Felsic Volcanic	Dacite	61.43	0.7	18.12	3.4		2.41		0.14	2.1	4.46	3.12	1.92	0.13	97.93
60717	DETAILS	NOT GIVEN	Rock	Igneous Intermediate Plutonic	Granodiorite																							85.7	240.6					0.7068
KH-4	DETAILS	ICPMS	Rock	Igneous Intermediate Volcanic	Andesite															510				2.8	7.56			57	511		15		82.3
KH-4	DETAILS	TIMS	Rock	Igneous Intermediate Volcanic	Andesite																													0.704271
KH-4	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	61.54	0.72	16		6.37			0.13	2.59	5.86	3.59	2.15	0.18	99.13

Data from the SESAR Database

Sorry. No data exist for this volcano in the SESAR database.

Data from the MaGa Database

Sorry. No data exist for this volcano in the MaGa database.